9 |
# http://en.wikipedia.org/wiki/RIFF_(File_format) |
# http://en.wikipedia.org/wiki/RIFF_(File_format) |
10 |
# http://www.obrador.com/essentialjpeg/HeaderInfo.htm |
# http://www.obrador.com/essentialjpeg/HeaderInfo.htm |
11 |
# http://lists.helixcommunity.org/pipermail/datatype-dev/2005-January/001886.html |
# http://lists.helixcommunity.org/pipermail/datatype-dev/2005-January/001886.html |
12 |
|
# http://mpgedit.org/mpgedit/mpeg_format/mpeghdr.htm |
13 |
|
|
14 |
use strict; |
use strict; |
15 |
|
|
18 |
use File::Path; |
use File::Path; |
19 |
use Getopt::Long; |
use Getopt::Long; |
20 |
|
|
21 |
my $dump = 0; |
my $dump_amv = 0; |
22 |
|
my $dump_video = 0; |
23 |
|
my $dump_jpeg = 0; |
24 |
|
my $dump_audio = 0; |
25 |
my $debug = 0; |
my $debug = 0; |
26 |
|
my $verbose = 0; |
27 |
my $dump_dir = '/tmp/dump/'; |
my $dump_dir = '/tmp/dump/'; |
28 |
|
my $dump_avi = "dump.avi"; |
29 |
my $no_jpeg_header = 0; |
my $no_jpeg_header = 0; |
30 |
my $jpeg_q = 100; |
my $jpeg_q = 100; |
31 |
|
my $jpegtran; |
32 |
|
|
33 |
GetOptions( |
GetOptions( |
34 |
"dump!" => \$dump, |
"dump-amv!" => \$dump_amv, |
35 |
|
"dump-video!" => \$dump_video, |
36 |
|
"dump-jpeg!" => \$dump_jpeg, |
37 |
|
"dump-audio!" => \$dump_audio, |
38 |
"debug!" => \$debug, |
"debug!" => \$debug, |
39 |
"dump-dir=s" => \$dump_dir, |
"dump-dir=s" => \$dump_dir, |
40 |
"no-jpeg-headers!" => \$no_jpeg_header, |
"no-jpeg-headers!" => \$no_jpeg_header, |
41 |
|
"jpegtran=s" => \$jpegtran, |
42 |
|
"verbose!" => \$verbose, |
43 |
); |
); |
44 |
|
|
45 |
my $path = shift @ARGV || die "usage: $0 movie.amv\n"; |
my $path = shift @ARGV || die "usage: $0 movie.amv\n"; |
46 |
|
|
47 |
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# by default, flip frames |
48 |
|
#$jpegtran = '-flip vertical' unless defined($jpegtran); |
49 |
|
|
50 |
rmtree $dump_dir if -e $dump_dir; |
rmtree $dump_dir if -e $dump_dir; |
51 |
mkpath $dump_dir || die "can't create $dump_dir: $!"; |
mkpath $dump_dir || die "can't create $dump_dir: $!"; |
59 |
my $d; |
my $d; |
60 |
|
|
61 |
sub hex_dump { |
sub hex_dump { |
|
return unless $dump; |
|
|
|
|
62 |
my ( $bytes, $offset ) = @_; |
my ( $bytes, $offset ) = @_; |
63 |
return unless $bytes; |
return unless $bytes; |
64 |
|
|
100 |
my $r_len = length($bytes); |
my $r_len = length($bytes); |
101 |
confess "read $r_len bytes, expected $len" if $len != $r_len; |
confess "read $r_len bytes, expected $len" if $len != $r_len; |
102 |
|
|
103 |
hex_dump( $bytes ); |
if ( $dump_amv ) { |
104 |
|
print "## raw $len bytes\n"; |
105 |
|
hex_dump( $bytes ); |
106 |
|
} |
107 |
|
|
108 |
if ( $bytes eq 'AMV_END_' ) { |
if ( $bytes eq 'AMV_END_' ) { |
109 |
print "> end of file marker AMV_END_\n" if $dump; |
print "> end of file marker AMV_END_\n" if $dump_video; |
110 |
$d->{eof}++; |
$d->{eof}++; |
111 |
return; |
return; |
112 |
} |
} |
128 |
if ( $expected_len ) { |
if ( $expected_len ) { |
129 |
confess "expected $expected_len bytes for $part got $len" if $len != $expected_len; |
confess "expected $expected_len bytes for $part got $len" if $len != $expected_len; |
130 |
} |
} |
131 |
printf "<< %s - %d 0x%x bytes\n", $part, $len, $len; |
printf "## next_part %s - %d 0x%x bytes\n", $part, $len, $len if $debug; |
132 |
x($len) if $skip; |
x($len) if $skip; |
133 |
return $len; |
return $len; |
134 |
} |
} |
146 |
$out .= chr($t); |
$out .= chr($t); |
147 |
} |
} |
148 |
|
|
149 |
if ( $dump ) { |
if ( $dump_video ) { |
150 |
print "## quantization table original\n"; |
print "## quantization table original\n"; |
151 |
hex_dump( $in ); |
hex_dump( $in ); |
152 |
print "## quantization table for $jpeg_q %\n"; |
print "## quantization table for $jpeg_q %\n"; |
156 |
return $out; |
return $out; |
157 |
} |
} |
158 |
|
|
159 |
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sub mp3_frame { |
160 |
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my $frame = join('', |
161 |
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# Frame sync (all bits set) |
162 |
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1 x 11 . |
163 |
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# MPEG Audio version ID |
164 |
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# 00 - MPEG Version 2.5 (unofficial) |
165 |
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# 01 - reserved |
166 |
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# 10 - MPEG Version 2 (ISO/IEC 13818-3) |
167 |
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# 11 - MPEG Version 1 (ISO/IEC 11172-3) |
168 |
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1,0, |
169 |
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# Layer description |
170 |
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# 00 - reserved |
171 |
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# 01 - Layer III |
172 |
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# 10 - Layer II |
173 |
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# 11 - Layer I |
174 |
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0,1, |
175 |
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# Protection bit |
176 |
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# 0 - Protected by CRC (16bit crc follows header) |
177 |
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# 1 - Not protected |
178 |
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0, |
179 |
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# Bitrate index |
180 |
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0,0,0,0, |
181 |
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# Sampling rate frequency index (22050) |
182 |
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0,0, |
183 |
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# Padding bit |
184 |
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# 0 - frame is not padded |
185 |
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# 1 - frame is padded with one extra slot |
186 |
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0, |
187 |
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# Private bit |
188 |
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0, |
189 |
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# Channel Mode |
190 |
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# 00 - Stereo |
191 |
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# 01 - Joint stereo (Stereo) |
192 |
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# 10 - Dual channel (2 mono channels) |
193 |
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# 11 - Single channel (Mono) |
194 |
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1,1, |
195 |
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# Mode extension (Only if Joint stereo) |
196 |
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0,0, |
197 |
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# Copyright |
198 |
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0, |
199 |
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# Original |
200 |
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0, |
201 |
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# Emphasis |
202 |
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# 00 - none |
203 |
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# 01 - 50/15 ms |
204 |
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# 10 - reserved |
205 |
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# 11 - CCIT J.17 |
206 |
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0,0, |
207 |
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); |
208 |
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|
209 |
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die "frame must have 32 bits, not ", length($frame), " for $frame" if length($frame) != 32; |
210 |
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211 |
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my $bits = pack("b32", $frame); |
212 |
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|
213 |
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die "packed bits must be 4 bytes, not $bits" if length($bits) != 4; |
214 |
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|
215 |
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my $t = $frame; |
216 |
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$t =~ s/(.{8})/$1 /g; |
217 |
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warn "## mp3 frame frame = $t\n"; |
218 |
|
|
219 |
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return $bits; |
220 |
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} |
221 |
|
|
222 |
my @subframes; |
my @subframes; |
223 |
my $frame_nr = 1; |
my $frame_nr = 1; |
224 |
|
|
234 |
|
|
235 |
if ( $#subframes < ( $join_subframes - 1 ) ) { |
if ( $#subframes < ( $join_subframes - 1 ) ) { |
236 |
push @subframes, $data; |
push @subframes, $data; |
237 |
print "## saved $frame_nr/", $#subframes + 1, " subframe of ", length($data), " bytes\n"; |
print "## saved $frame_nr/", $#subframes + 1, " subframe of ", length($data), " bytes\n" if $debug; |
238 |
return; |
return; |
239 |
} |
} |
240 |
|
|
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my $path = sprintf("$dump_dir/%04d.jpg", $frame_nr++ ); |
|
|
|
|
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open(my $fh, '>', $path) || die "can't create $path: $!"; |
|
|
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|
241 |
my $w = $d->{amvh}->{width} || die "no width?"; |
my $w = $d->{amvh}->{width} || die "no width?"; |
242 |
my $h = $d->{amvh}->{height} || confess "no height?"; |
my $h = $d->{amvh}->{height} || confess "no height?"; |
243 |
|
|
360 |
0, # Ah, Ai (not used) |
0, # Ah, Ai (not used) |
361 |
); |
); |
362 |
|
|
363 |
if ( $dump ) { |
if ( $dump_jpeg ) { |
364 |
print "## created JPEG header...\n"; |
print "## created JPEG header...\n"; |
365 |
hex_dump( $header, 0 ); |
hex_dump( $header, 0 ); |
366 |
} |
} |
368 |
my $frame = join('', @subframes ) . $data; |
my $frame = join('', @subframes ) . $data; |
369 |
@subframes = (); |
@subframes = (); |
370 |
|
|
371 |
|
my $path = sprintf("$dump_dir/%04d.jpg", $frame_nr ); |
372 |
|
|
373 |
|
my $fh; |
374 |
|
if ( $jpegtran ) { |
375 |
|
open($fh, '|-', "jpegtran $jpegtran > $path") || die "can't create $path: $!"; |
376 |
|
} else { |
377 |
|
open($fh, '>', $path) || die "can't create $path: $!"; |
378 |
|
} |
379 |
|
|
380 |
if ( ! $no_jpeg_header ) { |
if ( ! $no_jpeg_header ) { |
381 |
print $fh $header, $frame, "\xFF\xD9" || die "can't write jpeg $path: $!"; |
print $fh $header . $frame . "\xFF\xD9" || die "can't write jpeg $path: $!"; |
382 |
} else { |
} else { |
383 |
print $fh $frame || die "can't write raw jpeg $path: $!"; |
print $fh $frame || die "can't write raw jpeg $path: $!"; |
384 |
} |
} |
385 |
close $fh || die "can't close $path: $!"; |
close $fh || die "can't close $path: $!"; |
386 |
print ">> created $frame_nr ", $no_jpeg_header ? 'raw' : '', " jpeg $path ", -s $path, " bytes\n"; |
print ">> created $frame_nr ", $no_jpeg_header ? 'raw' : '', " jpeg $path ", -s $path, " bytes\n" if $verbose; |
387 |
} |
} |
388 |
|
|
389 |
my ( $riff, $amv ) = x(12, 'Z4x4Z4'); |
my ( $riff, $amv ) = x(12, 'Z4x4Z4'); |
390 |
die "$path not RIFF but $riff" if $riff ne 'RIFF'; |
die "$path not RIFF but $riff" if $riff ne 'RIFF'; |
391 |
die "$path not AMV but $amv" if $amv ne 'AMV '; |
die "$path not AMV but $amv" if $amv ne 'AMV '; |
392 |
|
|
393 |
|
my $apath = "$dump_dir/audio.wav"; |
394 |
|
open(my $audio_fh, '>', $apath) || die "can't open audio file $apath: $!"; |
395 |
|
|
396 |
|
print $audio_fh pack 'a4Va4a4VvvVVv4', ( |
397 |
|
# header 'RIFF', size |
398 |
|
'RIFF',-1, |
399 |
|
# type: 'WAVE' |
400 |
|
'WAVE', |
401 |
|
'fmt ',0x14, |
402 |
|
# format: DVI (IMA) ADPCM Wave Type |
403 |
|
0x11, |
404 |
|
# channels |
405 |
|
1, |
406 |
|
# samples/sec |
407 |
|
22050, |
408 |
|
# avg. bytes/sec (for esimation) |
409 |
|
11567, |
410 |
|
# block align (size of block) |
411 |
|
0x800, |
412 |
|
# bits per sample (mono data) |
413 |
|
4, |
414 |
|
# cbSize (ADPCM with 7 soefficient pairs) |
415 |
|
2, |
416 |
|
# nSamplesPerBlock |
417 |
|
# (((nBlockAlign - (7 * nChannels)) * 8) / (wBitsPerSample * nChannels)) + 2 |
418 |
|
0x0ff9, |
419 |
|
); |
420 |
|
|
421 |
|
print $audio_fh pack 'a4VVa4V', ( |
422 |
|
# time length of the data in samples |
423 |
|
'fact',4, |
424 |
|
220500, |
425 |
|
# |
426 |
|
'data',-1, |
427 |
|
); |
428 |
|
|
429 |
|
my $riff_header_len = tell($audio_fh); |
430 |
|
|
431 |
while ( ! defined($d->{eof}) ) { |
while ( ! defined($d->{eof}) ) { |
432 |
my ( $list, $name ) = x(12,'A4x4A4'); |
my ( $list, $name ) = x(12,'A4x4A4'); |
433 |
die "not LIST but $list" if $list ne 'LIST'; |
die "not LIST but $list" if $list ne 'LIST'; |
434 |
print "< $list * $name\n"; |
print "< $list * $name\n" if $verbose; |
435 |
|
|
436 |
if ( $name eq 'hdrl' ) { |
if ( $name eq 'hdrl' ) { |
437 |
|
|
464 |
|
|
465 |
my $len = next_part( '00dc' ); |
my $len = next_part( '00dc' ); |
466 |
last unless $len; |
last unless $len; |
467 |
printf "<< %s 00dc - frame %d jpeg %d 0x%x bytes\n", $name, $frame, $len, $len; |
printf "<< %s 00dc - part %d jpeg %d 0x%x bytes\n", $name, $frame, $len, $len if $verbose; |
468 |
mkjpg( x($len) ); |
mkjpg( x($len) ); |
469 |
|
|
470 |
$len = next_part( '01wb', 0, 1 ); |
$len = next_part( '01wb' ); |
471 |
printf "<< %s 01wb - frame %d audio %d 0x%x bytes\n", $name, $frame, $len, $len; |
printf "<< %s 01wb - part %d audio %d 0x%x bytes\n", $name, $frame, $len, $len if $verbose; |
472 |
|
|
473 |
|
my $audio_frame = x( $len ); |
474 |
|
|
475 |
|
if ( $dump_audio ) { |
476 |
|
printf "#### dumping audio frame %d 0x%x bytes\n", length($audio_frame), length($audio_frame); |
477 |
|
hex_dump( $audio_frame ); |
478 |
|
} |
479 |
|
|
480 |
|
# remove 8 bytes of something |
481 |
|
$audio_frame = substr( $audio_frame, 8 ); |
482 |
|
|
483 |
|
if ( length($audio_frame) % 2 == 0 ) { |
484 |
|
print "#### even sized frame!"; |
485 |
|
# $audio_frame = substr( $audio_frame, 0, -1 ); |
486 |
|
} |
487 |
|
|
488 |
|
# print $audio_fh mp3_frame; |
489 |
|
print $audio_fh $audio_frame || die "can't write audio frame in $apath: $!"; |
490 |
|
|
491 |
|
$frame_nr++; |
492 |
}; |
}; |
493 |
|
|
494 |
} else { |
} else { |
495 |
die "unknown $list $name"; |
die "unknown $list $name"; |
496 |
} |
} |
497 |
} |
} |
498 |
|
|
499 |
|
my $cmd = "ffmpeg -i $dump_dir/%04d.jpg -r 16 -y $dump_avi"; |
500 |
|
system($cmd) == 0 || die "can't convert frames to avi using $cmd: $!"; |
501 |
|
|
502 |
|
my $size = tell($audio_fh); |
503 |
|
warn "## wav file size: $size\n"; |
504 |
|
|
505 |
|
seek( $audio_fh, 4, 0 ); |
506 |
|
print $audio_fh pack("V", $size - 8); |
507 |
|
seek( $audio_fh, $riff_header_len - 4, 0 ); |
508 |
|
print $audio_fh pack("V", $size - $riff_header_len); |
509 |
|
|
510 |
|
close($audio_fh) || die "can't close audio file $apath: $!"; |
511 |
|
|
512 |
|
print ">>>> created $frame_nr frames $dump_avi ", -s $dump_avi, " and $apath ", -s $apath, "\n"; |